【作者】 曾桃； 韩志钟； 潘海波；

【Author】 ZENG Tao,HAN Zhi-zhong,PAN Hai-bo (College of Chemistry and Chemical Engineering,Fuzhou University,Fuzhou 350108,China)

【机构】 福州大学化学化工学院；

【摘要】 将由种子法制得的Ag纳米粒子与聚乙烯醇(PVA)水溶液直接混合制得Ag/PVA纳米复合溶胶,然后采用流延法,通过真空干燥制备出Ag/PVA纳米复合薄膜。然后利用透射电子显微镜(TEM)、紫外可见分光光度计(UV-vis)、Cary Eclipse荧光分光光度计等仪器对制得的Ag/PVA纳米复合薄膜进行相关表征和测试。在与不含Ag纳米粒子的PVA复合薄膜的相关表征结果对比后发现Ag/PVA纳米复合薄膜中含有的Ag纳米粒子显著增强了薄膜的荧光强度,同时Ag/PVA纳米复合膜表现出良好的发光性能。更多还原

【Abstract】 Ag/PVA nano-composite thin films were prepared though wet-casting method and vacuum drying on ordinary glass.Ag/PVA nano-composite sol were abtained by direct mixing the Ag nanoparticles with polyvinyl alcohol(PVA) polymer solution.Ag nanoparticles were prepared by the seed.The morphology of Ag nanoparticles and absorption of composite films were characterized by TEM and UV-visible spectro-photometer.Fluorescence intensity of the samples were determined by fluorescence spectrophotometer.By comparing with PVA composite thin film,we can easily find Ag nanoparticles of Ag/PVA nano-composite thin films significantly enhance the fluorescence intensity of the film:Ag / PVA nanocomposite films also show good luminescence.更多还原